Mixing and vaporizing device for inhalers



(No Model.)

G. E. JOHNSON.

MIXINGANDVAPORIZING DEVICE FOR INHALERS'. No. 337,066. Patented Mar. 2,1886.

WITNESSES v INVHN ATTORNEYS.

grlphun Washington. n1 2;

UNIT D STATES PATENT OFFICE.

GEORGE E. JOHNSON, OF ALBION, INDIANA.

MIXING AND VAPORIZING DEVICE FOR INHALERS.

SPECIFICATION forming part of Letters Patent No. 337,066, dated March2,1886.

Application filed November 3, 1885. Serial No. 181,756. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE JOHNSON, of Albion, in the county of Nobleand State of Indiana, have invented a new and Improved Mixing andVaporizing Device for Inhalers, of which the following is a full,clear,=and exact description.

The object of my invention is to provide a new and improved device forthoroughly 'mixing anzesthetics-for example, nitrous oxide orlaughing-gas and ether-at the time that such anaesthetics are beingused.

The invention consists in the construction and combination of parts anddetails, as will be fully described and set forth hereinafter, andpointed out in the claims.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures.

Figure 1 is a longitudinal sectional elevation of my improved device formixing and vaporizing anaesthetics. Fig. 2 is a side view of thegageglass.

The tube Ais provided at one end with the yoke B. in screw 0 is held.The neck of a cylinder containing compressed nitrous oxide is passedthrough the yoke B, which is clamped on said neck in such a manner thatthe gas can pass from the cylinder into the bore Aof the tube A. Theinner end of the bore A is curved downward and leads into a chamber, D,projecting downward from the end of the tube A.

A couplingpiece, E, is screwed in the lower end of the chamber D, and tothe said piece E the flexible tube U is coupled, which conducts thegases into a gasometer.

A wiregauze cone, F, projects upward from the bottom of the chamber D,and insures a perfect mixing of the gases, as they must pass through theseveral apertures of the cone.

which the clamping or binding The anzestheticliquidfor instance, etheriscontained in the chamber G.

The liberated nitrous-oxide gas passes from the gas-cylinder through thetube A into the L chamber D.

The screw L is screwed outward more or less, and a small quantity of theliquid antesthetic-for example, ether-4s permitted to How from thechamber G through the bores H and N intothe chamber D, where itthoroughly mixes with the gas and then pases through the tube U into thegasometer.

' Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. The combimitiomwith the tube A, of thechambers D and G, connected to the bottom and top of said tube by thebores H K N, arranged in a zigzag form, and of the regulatingscrew L,with its inner end intersecting said bores, substantially ashereinshown; and described.

2. The combinatiomwith the tube A, of the chamber G, having the gage V,the chamber D, connected by bores with the chamber G, and of theregulating screw or valve L, substantially as herein shown anddescribed.

GEORGE JOHNSON.

\Vitnesses:

LUKE H. WRIGLEY, FIELDING RIOKETT.

